Joel Chianese is mobbed by Perth players and staff after his winning penalty kick to seal the first A-League semi-final between Perth Glory and Adelaide United at HBF Park in Perth.
Photograph: Travis Anderson/AAP

Departing Adelaide United coach Marco Kurz was left disgusted by what he considered an unfair advantage handed to the home side by FFA during his side’s penalty shootout loss to Perth Glory.

Adelaide fought back from 2-0 down to send the semi-final into extra-time on Friday night, before also coming from behind to tie scores at 3-3 and force the game to be decided by penalties.

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Normally in world football, a coin toss is held to decide which end the penalty shootout will take place. But Kurz was left spitting chips when this didn’t occur with the chosen end being nominated by administrators, who elected the goal directly in front of the main Glory supporter base.

A FFA spokesperson later confirmed that the A-League doesn’t use a coin toss when it comes to deciding which end a penalty shootout should be taken, instead, the end where the most fans are based is usually chosen.

The FFA said both clubs were made aware of what end would be used two days before the match, but Kurz was left apparently unaware of the system used by the A-League.

“The decision was done by the FFA and not from the referee, and that’s disgusting,” Kurz said.

“A FFA person came down and said this side, and that was the decision, it’s not fair.

“That doesn’t mean that we are a (bad) loser. Perth - congratulations, they were better in the shootout.

“But we have to discuss why. What is the reason. Nobody can give me an answer.

“Maybe FFA are making the rules. For me it’s new. I’m from overseas. Is it normal?